Tests weakCompareAndSet contend with strong compareAndSet.
JVM options: [-server, -XX:-TieredCompilation, -XX:+UnlockDiagnosticVMOptions, -XX:+StressLCM, -XX:+StressGCM] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| false, false, 0 | 0 | FORBIDDEN | not both shall fail |
| false, true, 2 | 46661 | ACCEPTABLE | actor2 execute before actor1 or win the contention with actor1 |
| true, false, -1 | 213869 | ACCEPTABLE | actor2 execute after actor1 |
| true, true, -1 | 0 | FORBIDDEN | not both shall succeed |
| true, true, 2 | 0 | FORBIDDEN | not both shall succeed |
JVM options: [-XX:TieredStopAtLevel=1] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| false, false, 0 | 0 | FORBIDDEN | not both shall fail |
| false, true, 2 | 1027842 | ACCEPTABLE | actor2 execute before actor1 or win the contention with actor1 |
| true, false, -1 | 1411428 | ACCEPTABLE | actor2 execute after actor1 |
| true, true, -1 | 0 | FORBIDDEN | not both shall succeed |
| true, true, 2 | 0 | FORBIDDEN | not both shall succeed |
JVM options: [-client] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| false, false, 0 | 0 | FORBIDDEN | not both shall fail |
| false, true, 2 | 70149 | ACCEPTABLE | actor2 execute before actor1 or win the contention with actor1 |
| true, false, -1 | 259711 | ACCEPTABLE | actor2 execute after actor1 |
| true, true, -1 | 0 | FORBIDDEN | not both shall succeed |
| true, true, 2 | 0 | FORBIDDEN | not both shall succeed |
JVM options: [-server, -XX:+UnlockDiagnosticVMOptions, -XX:+StressLCM, -XX:+StressGCM] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| false, false, 0 | 0 | FORBIDDEN | not both shall fail |
| false, true, 2 | 123323 | ACCEPTABLE | actor2 execute before actor1 or win the contention with actor1 |
| true, false, -1 | 382247 | ACCEPTABLE | actor2 execute after actor1 |
| true, true, -1 | 0 | FORBIDDEN | not both shall succeed |
| true, true, 2 | 0 | FORBIDDEN | not both shall succeed |
JVM options: [-client, -XX:-TieredCompilation] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| false, false, 0 | 0 | FORBIDDEN | not both shall fail |
| false, true, 2 | 244615 | ACCEPTABLE | actor2 execute before actor1 or win the contention with actor1 |
| true, false, -1 | 749865 | ACCEPTABLE | actor2 execute after actor1 |
| true, true, -1 | 0 | FORBIDDEN | not both shall succeed |
| true, true, 2 | 0 | FORBIDDEN | not both shall succeed |
JVM options: [-Xint] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| false, false, 0 | 0 | FORBIDDEN | not both shall fail |
| false, true, 2 | 53816 | ACCEPTABLE | actor2 execute before actor1 or win the contention with actor1 |
| true, false, -1 | 22394 | ACCEPTABLE | actor2 execute after actor1 |
| true, true, -1 | 0 | FORBIDDEN | not both shall succeed |
| true, true, 2 | 0 | FORBIDDEN | not both shall succeed |
JVM options: [-server, -XX:-TieredCompilation] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| false, false, 0 | 0 | FORBIDDEN | not both shall fail |
| false, true, 2 | 29120 | ACCEPTABLE | actor2 execute before actor1 or win the contention with actor1 |
| true, false, -1 | 151750 | ACCEPTABLE | actor2 execute after actor1 |
| true, true, -1 | 0 | FORBIDDEN | not both shall succeed |
| true, true, 2 | 0 | FORBIDDEN | not both shall succeed |
JVM options: [-server] Iterations: 5 Time: 200
| Observed state | Occurrence | Expectation | Interpretation |
|---|---|---|---|
| false, false, 0 | 0 | FORBIDDEN | not both shall fail |
| false, true, 2 | 255784 | ACCEPTABLE | actor2 execute before actor1 or win the contention with actor1 |
| true, false, -1 | 1179236 | ACCEPTABLE | actor2 execute after actor1 |
| true, true, -1 | 0 | FORBIDDEN | not both shall succeed |
| true, true, 2 | 0 | FORBIDDEN | not both shall succeed |